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Velocities of three persons A,B,C and so...

Velocities of three persons A,B,C and sound source S are shown in diagram.Frequency of sound source is 600 Hz and sound speed is 325m/sec.At given situation, which of the following options is / are correct :

A

frequency observed by A is `3600/7`Hz

B

frequency observed by B is zero

C

frequency observed by C is 700 Hz

D

frequency observed by A and C is same

Text Solution

Verified by Experts

`C=325m/sec`
f=600 Hz
`f_A=((C-V_A)/(C+V_S))f=3600/7Hz`
`f_B=((C+V_B)/(C+V_S))f=600 Hz`
`f_C=((C+V_C)/(C-V_S))f=700Hz`
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